September Weather in Mirnyy, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Mirnyy, Russian Federation is a crisp 9°C (49°F). Visitors can expect a range from a chilly -2°C (29°F) to a delightful 23°C (75°F). With 59 mm (2.3 in) of precipitation spread over 12 days, and an average humidity of 91%, it's wise to be prepared for the shifts in weather.

September Temperature in Mirnyy

In September in Mirnyy, the average temperature is 9°C (49°F), with maximums reaching up to 23°C (75°F) and minimums dipping as low as -2°C (29°F). It's a great time to explore Mirnyy if you enjoy mild weather and the opportunity for varied outdoor activities.

September Weather in Mirnyy: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mirnyy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mirnyy, September typically has an average temperature of 9°C (49°F), with highs reaching up to 23°C (75°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for Mirnyy generated using information from the Copernicus Climate Change Service.

September Precipitation in Mirnyy

In Mirnyy in September, the precipitation amount is 59 mm (2.3 in) occurring over the course of 12 days.

September Precipitation Trends in Mirnyy

The chart displays monthly precipitation patterns in Mirnyy, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Mirnyy, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Mirnyy

In Mirnyy in September humidity is 91%. With an average temperature of 9°C (49°F), this humidity feels like a chilly mist enveloping you, making travel uncomfortable as the dampness seeps into your clothing and chills you to the bone.

September Average Humidity in Mirnyy

This chart illustrates the average monthly humidity levels in Mirnyy, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Mirnyy is approximately 91%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mirnyy

In Mirnyy in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mirnyy for better planning.

Maximum UV Index Levels in Mirnyy for September

The chart shows the monthly maximum UV Index (UVI) for Mirnyy in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Mirnyy typically reaches 4, which falls under the moderate exposure category.

Data source: Mirnyy September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Mirnyy Compares to Other Months

Weather in Mirnyy varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mirnyy, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Mirnyy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	43 mm (1.7 inches)	99%	low
February Weather	-9°C (16°F)	60 mm (2.4 inches)	98%	low
March Weather	-4°C (25°F)	43 mm (1.7 inches)	96%	moderate
April Weather	3°C (38°F)	55 mm (2.2 inches)	89%	moderate
May Weather	11°C (52°F)	65 mm (2.6 inches)	82%	moderate
June Weather	15°C (60°F)	68 mm (2.7 inches)	76%	high
July Weather	18°C (65°F)	106 mm (4.2 inches)	84%	high
August Weather	16°C (61°F)	54 mm (2.1 inches)	86%	high
September Weather	9°C (49°F)	59 mm (2.3 inches)	91%	moderate
October Weather	4°C (40°F)	72 mm (2.8 inches)	93%	low
November Weather	-2°C (28°F)	60 mm (2.4 inches)	94%	low
December Weather	-8°C (17°F)	59 mm (2.3 inches)	94%	low